Method of supporting, constructing, and repairing furnace roofs



June 9, '1931- J. P. M LIMANS ,8

METHOD OF SUPPORTING, CONSTRUCTING, AND REPAIRING FURNACE ROOFS FiledJune 25, 1927 IL "A Patented June 9, 1931 UNITED STATES,

JOH P. MCLIMANS, or DULUTH, MINNESOTA I METHOD OF SUPPORTING,CONSTRUCTING, A D REPAIRINGFURNACE noors Application filed. June 25,

The invention pertains to furnace roofs and more particularly to amethod of con struction or repair of roofs of furnaces of the openhearth type. 3 5 In the operation of open hearth furnaces,

the roof generally erodes most rapidly directly above the tap hole ofthe furnace due it is cooled and repaired. Formerly it has been thepractice, in fact it has been neces- 5 sary, to discontinue the use of afurnace, cool it down and then have the carpenters erect on the insidean expensive scaffolding for the repair of this eroded part.

It is therefore an object of this invention to to provide a simple,inexpensive and effective method of repairing an open hearth furnaceroof without, necessarily cooling down said furnace. v 7

Another object is to provide a method of repairing furnace roofs whereinthe work may bewholly conducted externally of the' furnace.

Still another obj ect is to provide a method to be used in repairingfurnace roofs whereby the part of said roof to be repairedis built upsectionally. 1

Other and further objects will readily oc-. cur from the detaileddescription, claims and r drawings appended hereto. 1 In the drawings,wherein like reference characters are used to designate like parts-.-

Fig. 1 is a perspective of a part of the roof and adjacent wall of afurnace of the open hearth type, illustrating the use of the device forrepairing an eroded portion of the roof; Figure 2 is a Vertical sectionillustrating the procedure in repairing an eroded area; and

Figure 3 is a perspective of one of the bricks with its attaching handlefor supporting the brick in place from a part of. the device. 7 p a Theusual open hearth furnace comprising. go a vertical wall 10 and the roof12 isshown u having a roof built up in the form of a corbricksarethen'slid into place enough to fill rugated surface formed of bricks13 141,-

the object being to provide a greaterfradiating surface on the upperside of the arched Shapes As already; pointed tout, usually above thetaphole anie'rosion takes place, as

indicated by the dotted line15 of Figure 1, In order to repair thisdamaged area, the eroded part is squared up for the reception of the'usulalst'andard bricks 18. A; strip of metal 16 having a supportingfoot 17 is'then laid'on top of the arch, the foot portion rest. ing ontop of the side wall and the remainder thereofcompletely spanning thehole, The bricks 18 are then indented or aperturedv at 19 by anyconvenient means, as a pick, and may bedone by workmen in the process ofrepairing. theroofa The wire handle 20, which is in the for nof a loopand provided with prongs, is then fastened to said brick by insertingthe-prongsinto the indentations and it will be noticed that the handleon the side .of the brick to be placed nearest the metal strip'is offsetfrom the side-of the brick v a to form a shoulder 21. The brick is thenslid into place'resting on the skewblock and is prevented from slidingdown into the furnace by frictional engagement with the other parts 2 ofthe roof and also by reason of the shoulder 21eresting on the metalstrip 16. Other onerow ,or courseat that particular point until the lastbrick 22 is reach-ed. This brick I performs the. function I of akeybrick and .need not "be provided with handles-asit'is V used towedgethatcourse ofbricks in position. ,VVhenthis brick isfinallyreached, the springhandl-es 20 may bepulled fromltheir attachmentand the, metal strip, may then be. moved" along to accommodate othersuccessive courses of bricks, it being-understood that this. process isrepeated until the hole is completely filled.

In repairing a roof, it is maintain the grooved or corrugated surface. IThis is readily shown by Figure 2 wherein 13 and 14 represent thecorrugated original;

not necessary to r surface of the roof and 18 represents the brickssupplied by this process and the dotted lines 23 represent the coursesof bricks to be added to complete the hole.

It will be readily understood that other and various embodiments of theinvention will be apparent to thoseskilledin the art and I do notwish tobe limited by the exact embodiment shown, which it Will be apple--ciated, is merely by of: illustration and. I

not limitation.

cleim: Q v v r 1. The method of repairing roofs which includes providinga movable: member for guiding and supporting a course of, bricks,placing a course-off bricks, sup-porting same by the e dge lof saidmember. and by frictional cqntactjwith, adjacent roof strueture, and vplacing a key brick torelieveythemember of supporting function.

The "ethod f -rep-airi-ng roofs" Whichi'nolud-esplaci-ngarow of brickshaving removable handles" eachi provided with a shoulder, successivelysupporting each shoulder, on a member provid'edbe'side eachroW,and-placing akey brick to relieve said member from supportingsaidbricks.r

3: lThe i-nethod of repairing furnace roof which includes squaring thehole to be; re-, paired laying a course ofbricks successively,eaclrbeing, provided'with ahandle-having a shoulderfor'sup-porting eachbrick on a mov+ able member providedalongsidethe course", and placing akey brick betweentheend brick and the furnace structure; to relieve themember from supporting' relation with said bricks and allowing thehandlesto be removedi,

etk'llhefmethod of forming arelie's which includes; supporting the unitsconfi tituting a course of material from a movablemember until saidcourse is completed, and successively forming other, courses,supportingthe same f-romadjacent course andsaid move able memberuntilsaid last-namedcourses are completed.

5; An apparatus for'use in,repairing furnaee; roofs comprising,- in"combination, a brace adapted" to, span the: roof, said brace being ofa-jsh'ape; conforming substantially to the motto be repairedpandjaplurality of loop shaped inembershaving inwardly, ex

tending end portions. arranged'to engage withinthe sideiwalls of bricksforming the repair course, said members being, provided with shoulder,vportions for engaging. the brace whereby, the brieksare supported duringtherepair operation.

igne'dat Duluth, Minnesota, this 20th day of-Jii'ne', 19272 I p 7 JQHNP. S;

